Strong contender and hot favorite Maria Sharapova was tested by Nadia in the quarter final.
In the first set Maria's serve was broken twice and was down 4-6 in the tie break. Thanks to Nadia Petrova's four unforced errors, she managed to clinch the set and match.
Score - Australian Open 2006 - Quarter Final:
Maria Sharapova 7(8) 6
Nadia Petrova 6(6) 4
